1. Department of Chemistry , University of Sargodha , Sargodha , Pakistan
2. Department of Physics , University of Sargodha , Sargodha , Pakistan
3. Department of Chemistry , University of Engineering and Technology , Lahore 54890 , Pakistan
4. Department of Chemistry , King Fahd University of Petroleum and Minerals , Dhahran 31261 , Saudi Arabia
5. Department of Chemistry, College of Sciences and Humanities , Prince Sattam bin Abdulaziz University , Al-Kharj 11942 , Saudi Arabia
6. Department of Chemistry , Government College University , Lahore , Pakistan